Geranium plant named ‘TOSTD0188’

ABSTRACT

A new and distinct cultivar of Geranium plant named ‘TOSTD0188’, characterized by its semi-double type, dark reddish-orange colored flowers, dark green-colored foliage having zonation, and moderately vigorous, upright-mounded growth habit, is disclosed.

Latin name of genus and species of plant claimed: Pelargonium x hortorum.

Variety denomination: ‘TOSTD0188’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Geranium plant botanically known as Pelargonium x hortorum and hereinafter referred to by the cultivar name ‘TOSTD0188’.

The new cultivar originated in a controlled breeding program in Hendrik-Ido-Ambacht, the Netherlands during July 2015. The objective of the breeding program was the development of Geranium cultivars that flower uniformly and have large flowers, dark green-colored foliage, and a moderately vigorous, upright-mounded growth habit.

The new Geranium cultivar is the result of cross-pollination. The female (seed) parent of the new cultivar is Shocking Orange ‘Pacshorg’, U.S. Plant Pat. No. 22,043, characterized by its semi-double type, bright orange-colored flowers, dark green-colored foliage having zonation, and vigorous, upright and rounded growth habit. The male (pollen) parent of the new cultivar is the proprietary Pelargonium x hortorum breeding selection coded TA0057, not patented, characterized by its semi-double type, medium orange-colored flowers, dark green-colored foliage having zonation, low vigor and an upright-mounded growth habit. The new cultivar was discovered and selected as a single flowering plant within the progeny of the above stated cross-pollination during August 2016 in a controlled environment in Hendrik-Ido-Ambacht, the Netherlands.

Asexual reproduction of the new cultivar by terminal stem cuttings since August 2016 in Hendrik-Ido-Ambacht, the Netherlands and Arroyo Grande, Calif. has demonstrated that the new cultivar reproduces true to type with all of the characteristics, as herein described, firmly fixed and retained through successive generations of such asexual propagation.

SUMMARY OF THE INVENTION

The following characteristics of the new cultivar have been repeatedly observed and can be used to distinguish ‘TOSTD0188’ as a new and distinct cultivar of Geranium plant:

-   -   1. Semi-double type, dark reddish-orange colored flowers;     -   2. Dark green-colored foliage with zonation; and     -   3. Moderately vigorous, upright-mounded growth habit.

Plants of the new cultivar differ from plants of the female parent primarily in having a darker colored leaf zonation and a small diameter inflorescence. Plants of the new cultivar differ from plants of the male parent primarily in having increased growth vigor.

Of the many commercially available Geranium cultivars, the most similar in comparison to the new cultivar is Savannah Oh So Orange ‘Duesaoran’, U.S. Plant Pat. No. 26,144. However, in side-by-side comparisons, plants of the new cultivar differ from plants of ‘Duesaoran’ in at least the following characteristics:

-   -   1. Plants of the new cultivar have a darker colored leaf         zonation than plants of ‘Duesaoran’;     -   2. Plants of the new cultivar have a flower color that has less         red coloration than plants of ‘Duesaoran’; and     -   3. Plants of the new cultivar are shorter than plants of         ‘Duesaoran’.

The new cultivar can also be compared to Dynamo Orange ‘TOSTC0563’, co-pending application. However, in side-by-side comparison, plants of the new cultivar differ from plants of ‘TOSTC0563’ in at least the following characteristics:

-   -   1. Plants of the new cultivar have flowers with less red         coloration than plants of ‘TOSTC0563’;     -   2. Plants of the new cultivar have a darker colored leaf         zonation than plants of ‘TOSTC0563’; and     -   3. Plants of the new cultivar have fewer petals per flower than         plants of ‘TOSTC0563’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs show, as nearly true as it is reasonably possible to make the same in color illustrations of this type, typical flower and foliage characteristics of the new cultivar. Colors in the photographs may differ slightly from the color values cited in the detailed description, which accurately describes the colors of ‘TOSTD0188’. The plants were approximately 4 months old and grown in 4.5-inch pots for approximately 14 weeks in a greenhouse in West Chicago, Ill.

FIG. 1 illustrates a side view of the overall growth and flowering habit of ‘TOSTD0188’.

FIG. 2 illustrates a close-up view of an individual umbel of ‘TOSTD0188’.

FIG. 3 illustrates a close-up view of an individual leaf of ‘TOSTD0188’.

DETAILED BOTANICAL DESCRIPTION

The new cultivar has not been observed under all possible environmental conditions to date. Accordingly, it is possible that the phenotype may vary somewhat with variations in the environment, such as temperature, light intensity, and day length, without, however, any variance in genotype.

The chart used in the identification of colors described herein is The R.H.S. Colour Chart of The Royal Horticultural Society, London, England, 2015 edition, except where general color terms of ordinary significance are used. The color values were determined in April 2019 under natural light conditions in West Chicago, Ill.

The following descriptions and measurements describe approximately 4-month old plants produced from cuttings from stock plants and grown in a glass-covered greenhouse under conditions comparable to those used in commercial practice. The plants were grown in West Chicago, Ill. in 4.5-inch pots for approximately 14 weeks utilizing a soilless growth medium. Greenhouse temperatures were maintained at approximately 67° F. to 72° F. (19° C. to 22° C.) during the day and approximately 65° F. to 68° F. (18° C. to 20° C.) during the night. Supplemental lighting was used. Measurements and numerical values represent averages of typical plants.

-   Botanical classification: Pelargonium x hortorum ‘TOSTD0188’. -   Parentage:     -   -   Female parent.—Shocking Orange ‘Pacshorg’, U.S. Plant Pat.             No. 22,043.         -   Male parent.—Proprietary Pelargonium x hortorum breeding             selection coded TA0057, not patented. -   Propagation:     -   -   Type cutting.—Terminal stem.         -   Time to initiate roots.—Approximately 9 to 12 days.         -   Time to produce a rooted cutting.—Approximately 21 to 28             days.         -   Root description.—Fibrous.         -   Rooting habit.—Freely branching. -   Plant description:     -   -   Commercial crop time.—Approximately 8 to 9 weeks from a             rooted cutting to finish in a 10 cm pot.         -   Growth habit and general appearance.—Moderately vigorous,             upright-mounded.         -   Size.—Height from soil level to top of plant plane:             Approximately 21.5 cm. Height from soil level to top of             foliage: Approximately 12.0 cm. Width: Approximately 27.0             cm.         -   Branching habit.—Freely basal branching, pinching enhances             basal branching. Quantity of main branches per plant:             Approximately 2.         -   Branch.—Strength: Strong. Length: Approximately 12.0 cm.             Diameter: Approximately 7.0 mm. Length of central internode:             Approximately 3.0 cm. Texture: Densely pubescent with a             mixture of glandular and nonglandular hairs. Gland color:             Colorless, transparent. Color of young and mature stems:             146B tinted with 187A in sun. -   Foliage description:     -   -   General description.—Quantity of leaves per branch:             Approximately 12. Fragrance: Slight. Form: Simple.             Arrangement: Opposite.         -   Leaves.—Aspect: Petiole is at an acute angle to stem, blade             is perpendicular to stem. Shape: Reniform. Margin:             Bicrenate, palmately lobed, somewhat wavy. Apex: Obtuse.             Base: Cordate. Venation pattern: Palmate. Length of mature             leaf: Approximately 8.5 cm. Width of mature leaf:             Approximately 9.5 cm. Texture of upper and lower surfaces:             Densely pubescent with a mixture of glandular and             nonglandular hairs. Gland color: 25D and colorless,             transparent. Color of upper surface of young foliage:             Closest to 137B with an overlay of N187A on zonal area of             approximately outer two thirds of leaf, venation of 146B.             Color of lower surface of young and mature foliage: Closest             to 147B with venation of 146C. Color of upper surface of             mature foliage: Closest to N187A with an overlay of 139A on             zonal area of approximately outer two thirds of leaf,             venation of 146A.         -   Petiole.—Length: Approximately 5.0 cm. Diameter:             Approximately 3.0 mm. Texture: Densely pubescent with a             mixture of glandular and nonglandular hairs. Gland color:             Colorless, transparent. Color: 146A to 146B, occasionally             tined with 187A. -   Flowering description:     -   -   Flowering habit.—‘TOSTD0188’ is freely flowering under             outdoor growing conditions with substantially continuous             blooming from spring through autumn and year-round in             greenhouse environment.         -   Lastingness of individual flower on the plant.—Approximately             12 to 14 days. -   Inflorescence description:     -   -   General description.—Type: Umbel, semi-spherical. Positioned             above foliage. Quantity of fully open umbels per plant:             Approximately 3. Quantity of developing umbels per plant:             Approximately: 2. Fragrance: Slight. Length or height:             Approximately 5.5 cm. Width: Approximately 9.5 cm. Quantity             of fully open flowers per inflorescence: Approximately 12.         -   Peduncle.—Strength: Strong. Aspect: Erect. Length:             Approximately 13.0 cm. Diameter: Approximately 5.0 mm.             Texture: Densely pubescent with a mixture of glandular and             nonglandular hairs. Gland color: Colorless, transparent.             Color: 146A to 146B with a heavy overlay of 187A in sun. -   Flower description:     -   -   General description.—Type: Semi-double.         -   Bud.—Rate of opening: Generally takes 3 to 4 days for bud to             progress from first color to fully open flower.         -   Bud just before opening.—Shape: Elliptic. Length:             Approximately 1.4 cm. Width: Approximately 8.0 mm. Sepal             texture: Densely pubescent with a mixture of glandular and             nonglandular hairs. Gland color: Mixture of 25D and             colorless, transparent. Petal texture: Glabrous. Petal             color: N30A to N30B.         -   Corolla.—Shape: Round. Diameter: Approximately 4.8 cm.             Depth: Approximately 2.0 cm.         -   Petals.—Quantity: Approximately 6 petals and 1 to 2             irregularly-shaped petaloids per flower. Shape: Obovate.             Appearance: Iridescent. Margin: Entire. Apex: Obtuse. Base:             Attenuate. Length of upper petals: Approximately 2.7 cm.             Width of upper petals: Approximately 2.1 cm. Length of lower             petals: Approximately 2.4 cm. Width of lower petals:             Approximately 2.2 cm. Texture of upper and lower surfaces:             Glabrous. Color of upper surface of upper petals when fully             open: N30A and venation of 46A at base. Color of lower             surface of upper petals when fully open: 40C with venation             of 46B. Color of upper surface of lower petals when fully             open: N30A. Color of lower surface of lower petals when             fully open: 40C.         -   Calyx.—Shape: 5-pointed star. Diameter: Approximately 2.0             cm.         -   Sepals.—Quantity per flower: Approximately 5, fused at base.             Shape: Lanceolate. Margin: Entire. Apex: Acuminate. Length             of upper sepal: Approximately 1.1 cm. Width of upper sepal:             Approximately 4.0 mm. Length of lower sepals: Approximately             1.1 cm. Width of lower sepals: Approximately 2.0 mm. Texture             of upper surface: Glabrous. Texture of lower surface:             Densely pubescent with a mixture of glandular and             nonglandular hairs. Gland color: Colorless, transparent.             Color of upper surface: 146B with an overlay of 187B             primarily near base. Color of lower surface: 146A with             streaks of and an overlay of 187A primarily at base.         -   Pedicel.—Strength: Strong. Aspect: Acute angle to peduncle.             Length: Approximately 2.0 cm. Diameter: Approximately             2.0 mm. Texture: Densely pubescent with a mixture of             glandular and nonglandular hairs. Gland color: Colorless,             transparent. Color: 146B with a heavy overlay of 187B.         -   Reproductive organs.—Androecium: Quantity of mature stamens:             Approximately 8 per flower. Anther shape: Oblong. Anther             length: Approximately 2.0 mm. Anther color: Closest to 71B.             Filament length: Approximately 7.0 mm. Filament color:             NN155D tinted with 71B and N30B nearest anther. Pollen             amount: Moderate. Pollen color: 32C. Gynoecium: Pistil             quantity: 1 per flower. Pistil length: Approximately 8.0 mm.             Stigma shape: 5 branched. Stigma length: Approximately             2.0 mm. Stigma color: 185B. Style length: Approximately             2.0 mm. Style color: Closest to 185B. Ovary length:             Approximately 4.0 mm. Ovary texture: Densely pubescent.             Ovary color: 145A. -   Seed and fruit production: Neither seed nor fruit production has     been observed. -   Disease and pest resistance: Resistance to pathogens and pests     common to Geranium has not been observed. 

What is claimed is:
 1. A new and distinct cultivar of Geranium plant named ‘TOSTD0188’, substantially as herein illustrated and described. 